These old devils, who were trying to be rampant a moment ago, were not a match for this young man and it was obvious that this young man's cultivation had already surpassed the peak of Xiantian fifth stage and having a higher level of cultivation implied that he was definitely a core disciple.
Using just the speech to cause the shock waves in the air just like mighty waves in the ocean was a method that could only be used by the masters of Xiantian sixth stage and above.
Ye Xiwen could also create mighty shock waves in the air using the blasts from his fists, but even he couldn't achieve such a feat to do that just by using his voice. To send shock waves in the air from just the speech required a terrifying aura possessed by masters of Xiantian sixth stage and above only.
This was actually a result of manifestation of an expert's internal strength already reaching a terrifying level.